Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cua doi kinh snippets" » "cua do kinh snippets", "cua doi dinh snippets", "cua doi tinh snippets", "sua doi kinh snippets", "cua dai kinh snippets", "cua hoi kinh snippets", "cua doi kinh slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("cua doi kinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua doi kinh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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